– Lat/Long: 48.71° N 121.99° W
South Twin Sister Weather Forecast
Cascade Range · United StatesIssued: 10 pm Mon 26 Oct Local Time
Updates in:
Update imminent hr min s
Issued: 10 pm Mon 26 Oct Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryHeavy rain (total 44mm), heaviest during Wed afternoon. Mild temperatures (max 7°C on Mon night, min 1°C on Thu morning). Wind will be generally light. | Days 5–7 Weather SummaryLight rain (total 8mm), mostly falling on Fri morning. Mild temperatures (max 7°C on Sat afternoon, min 3°C on Thu night). Wind will be generally light. | |||||||||||||||
Tuesday 27 | Wednesday 28 | Thursday 29 | Friday 30 | Saturday 31 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  | |  |  |  | | | | | | | |
light rain | light rain | light rain | rain shwrs | mod. rain | heavy rain | rain shwrs | clear | rain shwrs | some clouds | light rain | light rain | rain shwrs | light rain | rain shwrs | light rain | |
Cloud base (m) | 550 | 550 | 550 | 550 | 600 | 600 | 600 | 650 | 900 | 700 | 1500 | 600 | 650 | 700 | 1750 | 800 |
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 1.7 | 2 | 4 | 10 | 7 | 17 | 1.5 | — | 0.1 | — | 2 | 1.3 | 1.6 | 0.5 | 0.4 | 0.8 |
max °C | 7 | 7 | 7 | 6 | 4 | 4 | 4 | 5 | 7 | 4 | 3 | 4 | 4 | 6 | 7 | 5 |
min °C | 7 | 7 | 7 | 5 | 4 | 4 | 3 | 1 | 6 | 3 | 3 | 4 | 3 | 4 | 6 | 4 |
chill °C | 7 | 7 | 6 | 3 | 3 | 3 | 3 | 0 | 5 | 1 | 2 | 2 | 1 | 3 | 5 | 3 |
Freezing level m | 1700 | 1600 | 1450 | 1250 | 1200 | 1150 | 1050 | 1300 | 1450 | 1550 | 1050 | 1300 | 1300 | 1400 | 1450 | 1250 |
 | — | 7:46 | — | — | 7:47 | — | — | 7:48 | — | — | 7:50 | — | — | 7:52 | — | — |
 | — | — | 5:55 | — | — | 5:54 | — | — | 5:52 | — | — | 5:51 | — | — | 5:50 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Heavy rain (total 44mm), heaviest during Wed afternoon. Mild temperatures (max 7°C on Mon night, min 1°C on Thu morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 8mm), mostly falling on Fri morning. Mild temperatures (max 7°C on Sat afternoon, min 3°C on Thu night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table.For a wider overview of the weather, consult the Weather Map of Washington.